Corrected entry: Gail Weathers tells Kenny "I'll be right back" but survives the trilogy. We are specifically told that if a character uses this line he/she will be killed. It's a specific 'rule' of the genre.
Corrected entry: Right after curfew is in effect, when Tatum and Sydney are sitting on Sydney's front porch, you see the killer in the bushes in the background. The very next scene is of the video store where both killers, Stu and Billy, are speaking to Randy. The next scene that follows directly is Sydney and Tatum in the grocery store where you see the killer's reflection on the cooler glass. How can the killer(s) be in more than one place if this is all going on at the same time?
Corrected entry: In the beginning of the movie when Casey and the killer are on the phone, she locks the front door and says "I am two seconds away from calling the police." If you look at the door while she is locking it, you will see that there are three glass windows at the top. When the killer rings the doorbell, it shows the door and it now has nine glass windows. (00:04:00)
Corrected entry: When Randy is explaining the "rules" and he is standing beside the television the batteries fall out of the remote yet he still manages to change the TV over.
Corrected entry: When the real killer comes into the room and stabs Billy quite a few times, Billy turns around to Sid, he cleans the knife (although there is nothing on it). Then the camera shoots to the killer and he cleans the knife off again, only this time there is a lot of blood on it.
Corrected entry: In the space of 15 seconds (between the time Casey's mom hears her daughter on the phone and the time when she walks out her front door and sees Casey) how did the killer manage to tie Casey onto the swing? It would have taken quite a while to lift her body and twist the ropes around her tightly enough that they held. Stu couldn't have helped as he was with Tatum that night.
Corrected entry: Sidney is talking with Stu and Tatum at the lockers when someone runs by wearing the Ghostface mask. She runs down the hall, bumping into Billy, then goes into the bathroom and meets the killer. We know it isn't Billy because we just saw him, but how would Stu get into the bathroom without passing by Billy and Sidney?
Corrected entry: In the scene where Sydney gets to school and is talking to Gail, the clip that she wears in the back of her hair is silver, but in the next scene when she is at her locker with Tatum and Stu, the clip is brown.
Corrected entry: When Casey is looking outside at a tied-up Steve while on the phone with the killer, her hair is hanging over the phone. Cut to the scene of Steve, then back to Casey and her hair is pushed behind her ear. Back to Steve, then back to Casey again - her hair is hanging over the phone again.
Corrected entry: In the scene where Dewey and Gale are walking down the street looking for the abandoned car, they see two cars coming towards them on the road but when they jump out of the way you can clearly see only one car pass them. And there are no side roads for the other car to turn on to. (01:14:45)
Corrected entry: Since there were people coming and going to the party after Tatum was killed, and their cars were parked out front, don't you think someone would have noticed a body hanging from the garage door? The news van is also out in front of the driveway the entire time but apparently no one inside sees anything.
Corrected entry: Just before Sidney shoots Billy in the head, look at the Ghostface mask behind his shoulder. It looks pristine, but just after you see the big flash from the gun you see the mask has dry blood over it. (01:38:20)
Corrected entry: In the house when Sidney is attacked for the first time, she runs into her bedroom and tries to call the police using her house phone. When she realises it's engaged (because the other house phone is off the hook), she tries to contact the police via her computer. The police subsequently turn up. Problem is she only got as far as the computer asking what her emergency was. She never stated that she needed the police, so (a) how did the emergency services know what service to send to her, and (b) how did they even know who the request was from?